Reference:
The performance view for Queues is used to view real-time and historical metrics, such as service level %, abandon %, customers waiting, and active agents in Genesys Cloud CX Performance menu. The performance view for Queues is a view that shows various metrics and details related to queue performance and activities in Genesys Cloud CX. The performance view for Queues can help you measure and improve various aspects of your queue performance and activities, such as:
Service level
Abandon rate
Average speed of answer
Average handle time
Interaction volume
The performance view for Queues is used to view real-time and historical metrics, such as service level %, abandon %, customers waiting, and active agents because:
Real-time metrics are metrics that show the current data for agents, queues, skills, interactions, and flows. Real-time metrics are updated every 10 minutes in Genesys Cloud CX Performance menu . You can see the current values of various metrics, such as service level %, abandon %, customers waiting, and active agents.
Historical metrics are metrics that show the past data for agents, queues, skills, interactions, and flows. Historical metrics are stored every 10 minutes in Genesys Cloud CX Performance menu . You can see the historical values of various metrics by using the date filter or the pre-set day filter.
Service level % is a metric that shows the percentage of interactions that were answered within a target time threshold during a specified period of time. Service level % can help you measure the quality and efficiency of your queue performance and activities. You can see the real-time and historical service level % of a queue in the performance view for Queues.
Abandon % is a metric that shows the percentage of interactions that were abandoned by the customer or caller before reaching an agent during a specified period of time. Abandon % can help you measure the quality and efficiency of your queue performance and activities. You can see the real-time and historical abandon % of a queue in the performance view for Queues.
Customers waiting is a metric that shows the number of customers or callers who are currently waiting in a queue to be connected to an agent. Customers waiting can help you measure the demand and capacity of your queue performance and activities. You can see the real-time customers waiting of a queue in the performance view for Queues.
Active agents is a metric that shows the number of agents who are currently logged in to Genesys Cloud CX and are available to handle interactions in a queue. Active agents can help you measure the availability and productivity of your queue performance and activities. You can see the real-time active agents of a queue in the performance view for Queues.

The license used by a user is determined by the permissions enabled in the roles assigned to that user. Genesys Cloud CX offers different types of licenses with different levels of access and functionality. Each license corresponds to a set of permissions that enable or disable certain features within Genesys Cloud CX. When a user is assigned a role, they inherit the permissions associated with that role, which in turn determines their license type. Reference: https://help.mypurecloud.com/articles/about-licenses/ https://help.mypurecloud.com/articles/assign-licenses-to-users/

Explanation
The maximum number of rings that can be defined for Bullseye routing is 6. Bullseye routing is a type of AND Evaluation Method that evaluates agents based on predefined rings of skill requirements that relax as the selection pool expands from one ring to the next. Each ring can have one or more required skills and a minimum proficiency level for each skill. The first ring has the strictest skill requirements and the last ring has the loosest skill requirements. References: https://help.mypurecloud.com/articles/bullseye-routing/